biostudies-literatureUnknown29(17)Balzani PMetal pollution is one of the main environmental threats in freshwater ecosystems. Aquatic animals can accumulate these substances and transfer them across the food web, posing risks for both predators and humans. Accumulation patterns strongly vary depending on the location, species, and size (which in fish and crayfish is related to age) of individuals. Moreover, high metal concentrations can negatively affect animals' health. To assess the intraspecific relationship between metal accumulation and size and health (proxied by the body condition) of individuals, the concentration of 14 metals (Al, As, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Ni, Pb, Se, Zn) was analyzed in six alien species from the highly anthropogenically altered Arno River (Central Italy): five fish (Alburnus alburnus, PseudorasEnvironmental science and pollution research international25848-25857https://www.ebi.ac.uk/biostudies/studies/S-EPMC8986740biostudies-literatureMetal accumulation in relation to size and body condition in an all-alien species community.PMC8986740Tricarico EHaubrock PJKourantidou MKouba ABalzani PfalseMetal accumulation in relation to size and body condition in an all-alien species community.Metal pollution is one of the main environmental threats in freshwater ecosystems. Aquatic animals can accumulate these substances and transfer them across the food web, posing risks for both predators and humans. Accumulation patterns strongly vary depending on the location, species, and size (which in fish and crayfish is related to age) of individuals. Moreover, high metal concentrations can negatively affect animals' health. To assess the intraspecific relationship between metal accumulation and size and health (proxied by the body condition) of individuals, the concentration of 14 metals (Al, As, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Ni, Pb, Se, Zn) was analyzed in six alien species from the highly anthropogenically altered Arno River (Central Italy): five fish (Alburnus alburnus, Pseudoras2022-01-01T00:00:00Z2022 Apr2025-04-22T19:02:59.599Z2025-04-06T02:39:16.915ZS-EPMC89867403485148210.1007/s11356-021-17621-0